GSC BRZ/FRS/86 Exhaust Valve Guides (3063)

The GSC Power-Division traditional smooth-style exhaust valve guides for the Subaru BRZ, Scion FRS and Toyota 86 models. Standard sized guides are sold as set of 8 or individually. Oversized +0.001" and +0.003" options are sold individually. Please double-check your purchase and quantities.

Vehicle Fitment:
Subaru FA20D / Toyota 4U-GSE
2013+ Subaru BRZ
2013+ Scion FR-S
2017+ Toyota 86

Specs:
Total Length: 1.456" / 36.98mm
Outer Diameter: 0.3964" / 10.07mm
Valve Stem Diameter: 5.5mm

More Info:
GSC Power-Division valve guides are made from a proprietary blend of Manganese Bronze and turned on dedicated precision CNC turning centers. With performance and aftermarket installation in mind, we hold extremely tight tolerances on through-hole concentricity to outside diameter which minimizes the required honing time for the installer. True-to-size outside diameters minimize honing of guide bosses on cylinder heads that don't require boss service. Our guides are easier to install and shaped to improve air flow instead of just copying OEM design.

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